{"id":"CVE-2026-20560","kind":"vulnerability","aliases":["CVE-2026-20560"],"related":[],"title":"Modem: improper input validation lets a rogue base station crash the device","description":"In Modem, there is a possible system crash due to improper input validation. This could lead to remote denial of service, if a UE has connected to a rogue base station controlled by the attacker, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: MOLY01870543; Issue ID: MSV-9070.","summary":"A flaw in the modem firmware lets a phone or device crash when it connects to a rogue base station run by an attacker. The result is a remote denial of service, with no extra privileges or user action needed.","severity":"unknown","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["cellular","infrastructure","mobile-devices","modem"],"not_affected_if":["unknown"],"how_to_check":null,"fix":null,"status":"open","published_at":"2026-11-02T03:17:33+00:00","first_seen_at":"2026-11-02T03:31:24+00:00","triaged_at":"2026-11-02T03:32:33+00:00","updated_at":"2026-11-02T03:32:33+00:00","category":"infrastructure","confidence":0.5,"triage":{"at":"2026-11-02T03:32:33Z","model":"claude-haiku-5-5","output":{"fix":"- unknown","reach":"network","title":"Modem: improper input validation lets a rogue base station crash the device","impact":"low","summary":"A flaw in the modem firmware lets a phone or device crash when it connects to a rogue base station run by an attacker. The result is a remote denial of service, with no extra privileges or user action needed.","audience":"everyone","category":"infrastructure","nicknames":[],"who_cares":["modem","cellular","mobile-devices"],"confidence":0.5,"fix_status":"unknown","needs_auth":"no","worst_case":"Device crashes; remote denial of service via rogue base station.","analyst_note":"Identify the affected devices and the patched software version from the vendor bulletin for Patch ID MOLY01870543 / Issue ID MSV-9070.","how_to_check":"- unknown","plain_action":"Update your phone to the latest software from its vendor once a patch for this modem issue is released; the sources give no version to move to.","needs_analyst":true,"not_affected_if":["unknown"],"who_is_affected":"Devices with the affected modem firmware that connect to cellular networks are exposed when they attach to a rogue base station. The sources do not name the affected devices or versions, so the exact scope is unknown.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.000643,"input_tokens":4109,"output_tokens":464,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-2026':14A,17A '-20560':15A,18A '-9070':119C 'action':63B 'addit':102C 'attack':48B,99C 'base':8A,43B,94C 'cellular':19B 'connect':39B,90C 'control':96C 'could':79C 'crash':10A,36B,72C 'cve':13A,16A 'denial':54B,83C 'devic':12A,23B,35B 'due':73C 'execut':103C 'exploit':112C 'extra':59B 'firmwar':30B 'flaw':26B 'id':114C,117C 'improp':2A,75C 'infrastructur':20B 'input':3A,76C 'interact':107C 'issu':116C 'lead':80C 'let':5A,31B 'mobil':22B 'mobile-devic':21B 'modem':1A,24B,29B,66C 'moly01870543':115C 'msv':118C 'need':64B,105C,110C 'patch':113C 'phone':33B 'possibl':70C 'privileg':60B,104C 'remot':53B,82C 'result':50B 'rogu':7A,42B,93C 'run':45B 'servic':56B,85C 'station':9A,44B,95C 'system':71C 'ue':88C 'user':62B,106C 'valid':4A,77C","nicknames":[],"mitigations":[],"who_affected":"Devices with the affected modem firmware that connect to cellular networks are exposed when they attach to a rogue base station. The sources do not name the affected devices or versions, so the exact scope is unknown.","tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"unknown","audience":"everyone","plain_action":"Update your phone to the latest software from its vendor once a patch for this modem issue is released; the sources give no version to move to.","pkeys":[],"ptokens":[],"labels":["cellular","infrastructure","mobiledevices","modem","unknown"],"first_public_at":"2026-11-02T03:17:33+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-20560","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-20560","severity":null,"published_at":"2026-11-02T03:17:33+00:00","modified_at":"2026-11-02T03:17:33+00:00","first_seen_at":"2026-11-02T03:31:24+00:00","fetched_at":"2026-11-02T03:31:24+00:00","note":null}],"documents":[],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}